Hi! My name is Jenna and I'm currently part of the marketing team with Gilson. I wanted to make sure there was a reply to your question above - sorry for the long delay in our response.
On behalf of Gilson:
We are very sorry this happened to you.
Gilson does offer some models of pipettes that are fully autoclavable, but unfortunately the model you have is not. Please refer to the user's guide provided with your pipette. It advises which parts are autoclavable and how to autoclave them.
Please feel free to reach out to your local representative about any concerns. The contact information can be found at www.gilson.com/contactus.